Binary Numbers

What is Binary?

Computers today use the binary system to represent information. It is called binary because only two different digits are used.

Each zero or one is called a bit (binary digit). A bit is usually represented in a computer's main memory by a transistor that is switched on or off. 

Binary Numbers

The binary place values looks like this:

32 I 16 I 8 I 4 I 2 I 1

3 requires cards 2 & 1

12 requires cards 8 & 4

19 requires cards 16, 2 & 1

i.e. 10101 = 21, 11111= 31

What happens when you put a 0 to the right of a binary number?

When you put a zero on the right hand side of the binary number the number doubles. 

Tasks:

Binary Patterns

Binary Art

Create a message for a buddy using the following information

Counting in Binary